Troubleshooting
SiBE05-722EE
98
Service Diagnosis
Troubleshooting
RK(X)S25/35E2V1B
Check No.01
Refer to P.102
Check No.17
Refer to P.109
Check No.19
Refer to P.110
Note:
Refer to Silicone Grease on Power Transistor / Diode Bridge on page 122 for details.
(R23022)
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
NO
NO
YES
NO
YES
∗
Radiation fin thermistor
Check the radiation fin
temperature.
NO
YES
YES
Above
A
˚C?
Thermistor as
specified in its characteristic
chart?
Check No. 01
Check the thermistor resistance
value.
Error displayed again?
Has the PCB been
replaced?
Replace the radiation fin
thermistor.
Replace the outdoor unit
PCB (main PCB).
Check if the silicone grease
applied properly on the
radiation fin. If not, apply the
silicone grease.
NG
OK
Check No. 19
Check the outdoor fan.
Replace the outdoor fan
motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB (main PCB).
YES
NO
Radiation fin dirty?
Clean up the radiation fin.
Check the installation
condition.
Go to
Check No. 17
.
Turn off the power
. Then, turn on
the power to restart the system.
A
(°C)
RK(X)S25/35E2V1B
90